Abstract

This paper gives an overview of the attempts to determine the distribution of dark matter in low surface
brightness disk and gas-rich dwarf galaxies, both through observations and computer simulations. Observations
seem to indicate an approximately constant dark matter density in the inner parts of galaxies, while
cosmological computer simulations indicate a steep power-law-like behaviour. This difference has become
known as the “core/cusp problem,” and it remains one of the unsolved problems in small-scale cosmology.